{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["manufacturing process", "biomedical", "process characterization", "machine or equipment", "engineering feature", "manufacturing standard"], "input": "In the cold metal transfer additive manufacturing process of Ti-6Al-4V thin wall structure , ultrasonic peening treatment ( UPT ) in three directions is proposed to refine the large columnar prior-β grains and secondary α grains , and to improve anisotropy in tensile properties ."}
{"manufacturing process": ["cold metal transfer additive manufacturing", "ultrasonic peening"], "biomedical": [], "process characterization": [], "machine or equipment": [], "engineering feature": [], "manufacturing standard": []}